Sandbox
13 repos for building · Harnesses · Any agentClear

Agenta is a workspace where you and your team build agents and automations.

4.7k
molefrog/moiHarnesses

💾 MOI: agent-agnostic generative UI workspace. Give your agent a skill and let it build software around itself.

158

Enterprise-grade, commercial-friendly agentic workflow platform for building next-generation SuperAgents.

9k
deepklarity/
harness-kit

A kit for building with AI agents and also the engineering patterns around it.

97
striderZA/
OpenCodeGameStudios

Agentic game development taken to the next level: plan, build and test across major engines with any coding agent🤖

85

Self-hosted AI agent harness in a single Go binary — writes, sandbox-tests and repairs its own tools, and lets Claude Code, Codex and any MCP client build and share them.

508

A structured 3-agent AI dev team — Architect, Builder, Reviewer. Built from production use. Token-optimized. Works with Claude Code, VS Code, Cursor, and any AI that supports context files.

949
spring-ai-community/
spring-ai-playground

Safe local execution layer for AI agent tools. Build, validate, and publish MCP tools with a no-pass-no-run workflow — cross-platform desktop app powered by Spring AI.

137

Open-source, desktop client/UI build to harness Claude Code, Codex and any other Agent accepting Agent Client Protocol. Run multiple AI coding agents side by side with rich tool visualization, MCP integrations, built-in terminal, git, browser and just about anything else you may need.

369
SamurAIGPT/
llm-wiki-agent

A personal knowledge base that builds and maintains itself. Drop in sources — Claude (or Codex/Gemini) reads them, extracts knowledge, and maintains a persistent interlinked wiki. Works with Claude Code, Codex, OpenCode, Gemini CLI. No API key needed.

3.5k
AlekseiUL/
agentforge-openclaw

Create production-ready skills and agents for OpenClaw. 4-level memory, auto-improvement, 22 battle-tested pitfalls.

43
holaboss-ai/
holaOS

Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.

11k